return_list = [0.0119, -0.0043, -0.004, -0.0084, -0.01]
total = 1.0
for i in range(0, 5):
    total = total * (1 + return_list[i])
return_avg = total ** (1/len(return_list)) - 1
print('招商银行几何平均收益率为: {:.2%}'.format(return_avg))